I got a 4 phase stepper motor yesterday and was told by the seller it can be used as a 2 phase. After sorting out the pairs and testing several connections could only get it to turn just a little the start humming/buzzing sound, just wondering if anyone here has ever had this issue?
https://www.youtube.com/watch?v=Q2g3TGUwWyQ
It’s buzzing because it is probably getting a PWM signal not consistent with the motors ability to rotate in the distance you choose with a 2 phase setup. Try all 4.
The way it’s wired your jumping between poles on the rotor. The red wire will help eliminate that and I believe they should be wired in as well. By doing so will provide the less than 90 degree angle needed to shift to next step.
Maybe you have jumbled the coils. Measure continuity between wires
Watch these for a better look. Two videos part 1 and 2. https://www.google.com/url?sa=t&source=web&rct=j&url=https://m.youtube.com/watch?v%3DQPYRuX28SyY&ved=0ahUKEwjd68vq-c7RAhUT6mMKHa2dAt0QwqsBCC8wAw&usg=AFQjCNFtWaTHd9Tsvr6CX3JV8SntB8kyog&sig2=8kqImThFyVGpPS6SN9Q_mw
Do you have a unipolar or bipolar driver.
If a bipolar then ok but if unipolar then join the reds to make a 5 wire for controlling.
Maybe the motor can not be used for full coil use. Try subbing in the red wired since 6 wire two phase only use half the coil in a bipolar setup.
I will give it a try and see what happens